<template>
	<view style="flex-direction: row;" id="rootview">
		<radio-group @change="switchCacheOrData">
      <radio value="data" :checked="true">数据目录</radio>
      <radio value="cache"
      <!-- #ifdef MP-WEIXIN -->
      disabled
      <!-- #endif -->
      >缓存目录</radio>
    </radio-group>
    <button @click="refreshFile">刷新</button>
		<!-- #ifdef APP -->
		<button @click="clearFile">清空缓存</button>
		<!-- #endif -->
		<button @click="snapshot">截图</button>
	</view>
  <text>文件总数：{{ count }}；\n文件总大小：{{size}} M</text>
	<text style="border: 1px solid #ccc;margin: 5px;">根路径：{{rootPath}}</text>
	<list-view style="flex: 1;">
		<list-item v-for="(item, index) in fileList" :key="index" style="padding: 5px;border-bottom: 1px solid #ccc;" :style="getIndentStyle(item.shotPath)"
		@click="showDialog(item)">
			<view style="flex-direction: row;">
				<!-- <text style="font-family: uni-icon;" v-if="!item.isFile">\uE661</text> -->
				<!-- #ifdef APP -->
        <!-- TODO: 微信小程序不支持uni内置字体，还得再找一个图标-->
        <text style="font-family: uni-icon;" v-if="!item.isFile">{{uniIcon}}</text> <!-- TODO @颜伊林 必须写响应式变量，多端表现不一致-->
				<!-- #endif -->
				<text >{{(item.shotPath as string)}}</text>
			</view>
			<text style="font-size: 12px;color: #ccc;" v-if="item.isFile" >{{item.size}}k</text>
		</list-item>
	</list-view>
	<view v-if="dialogShow" style="position: fixed; top: 0; bottom: 0; left: 0; right: 0; align-items: center; justify-content: center; z-index: 1000; background-color: rgba(16, 16, 16, 0.5);">
		<view style="background-color: #fff;padding: 10px;border-radius: 10px;width: 90%;margin: 0 auto;">
			<text style="font-size: 20px;font-weight: bold;">{{currentFile.shotPath}}</text>
			<text>类型：{{currentFile.isFile ? '文件' : '目录'}}</text>
			<text>路径：{{currentFile.path}}</text>
			<text>大小：{{currentFile.size}}k</text>
			<text>修改时间：{{currentFile.modifyTime}}</text>
			<view style="flex-direction: row;width: 100%;justify-content: space-between;padding: 10px;">
				<button @click="openFile(currentFile)" size="mini" v-if="currentFile.isFile">打开</button>
				<button @click="deleteFile(currentFile)" size="mini">删除</button>
				<button @click="closeDialog" size="mini">关闭</button>
			</view>
		</view>
	</view>
</template>

<script setup>
	type fileListType = {
		path : string,
		shotPath : string,
		size : number,
		isFile : boolean,
		modifyTime : string
	}
	let fileList = ref([] as fileListType[])
	let count = ref(0), size = ref(0)
	let rootPath = ref("")
	let dialogShow = ref(false)
	const uniIcon = ref("\uE661")
	let currentFile = ref({"path":"","shotPath":"","size":0,isFile:false,modifyTime:''} as fileListType)
  let cacheOrData = ref(uni.env.USER_DATA_PATH)

  const switchCacheOrData = (e : UniRadioGroupChangeEvent) => {
		cacheOrData.value = (e.detail.value=="cache") ? uni.env.CACHE_PATH : uni.env.USER_DATA_PATH
	}

// 遍历文件刷新列表
	const refreshFile = () => {
	  const fileManager = uni.getFileSystemManager()
	  fileManager.stat({
	    // path: uni.env.CACHE_PATH, //沙盒cache目录
	    // path: uni.env.USER_DATA_PATH, //沙盒根目录
      path: cacheOrData.value,
	    recursive: true,
	    success: (res : StatSuccessResult) => {
				// log.value += 'statFileInfoTest success:' + JSON.stringify(res) + '\n\n'
	      console.log('statFileInfo success1')
	      console.log('res.stats', res.stats)
				console.log('uni.env.CACHE_PATH: ',uni.env.CACHE_PATH);
				console.log('uni.env.USER_DATA_PATH: ',uni.env.USER_DATA_PATH);
				console.log('uni.env.SANDBOX_PATH: ',uni.env.SANDBOX_PATH);
				let tempFileList = [] as fileListType[]
				let tempSize = 0
				for (let i=0;i<res.stats.length;i++) {
					console.log("resitem",res.stats[i].path);
          if (i==0) {
            rootPath.value = res.stats[i].path
						continue
          }
					let tempFileItem = {
						"path":"",
						"shotPath":"",
						"size":0,
						isFile:false,
						modifyTime:''
					} as fileListType

					tempFileItem.shotPath = res.stats[i].path.replace(rootPath.value, "")
					tempFileItem.path = res.stats[i].path
					tempFileItem.size = res.stats[i].stats.size/1024
					tempFileItem.isFile = res.stats[i].stats.isFile()
					const mdate = new Date(res.stats[i].stats.lastModifiedTime * 1000)
					tempFileItem.modifyTime = mdate.getFullYear().toString() + "-" + (mdate.getMonth()+1).toString() + "-" + mdate.getDate().toString() + " "
					+ mdate.getHours().toString() + ":" + mdate.getMinutes().toString() + ":" + mdate.getSeconds().toString()
					tempSize = tempSize + res.stats[i].stats.size
					tempFileList.push(tempFileItem)
				}
				fileList.value = tempFileList
				size.value = tempSize/1024/1024
				count.value = tempFileList.length
	    },
	    fail: (res : IUniError) => {
        uni.showModal({
        	title: '获取文件状态失败',
        	content: res.errMsg,
        	showCancel: false
        })
	      console.error('statFileInfo fail', res)
	    },
	    complete: (res : any) => {
	      console.log("statFileInfo complete", res)
	    }
	  } as StatOptions)
	}

	const showDialog = (item: fileListType) => {
		currentFile.value = item
		dialogShow.value = true
	}
	const closeDialog = () => {
		dialogShow.value = false
	}

	const deleteFile = (fileItem: fileListType) => {
    const fileManager = uni.getFileSystemManager()
    let path = cacheOrData.value + fileItem.path
    if (fileItem.isFile) {
      fileManager.unlink({
      	filePath: path,
      	success: () => {
      		refreshFile()
      		closeDialog()
      	},
      	fail: (err : IFileSystemManagerFail) => {
      		uni.showModal({
      			title: '删除文件失败',
      			content: err.errMsg,
      			showCancel: false
      		})
      	}
      })
    } else {
      fileManager.rmdir({
      	dirPath: path,
        recursive: true,
      	success: () => {
      		refreshFile()
      		closeDialog()
      	},
      	fail: (err : IFileSystemManagerFail) => {
      		uni.showModal({
      			title: '删除目录失败',
      			content: err.errMsg,
      			showCancel: false
      		})
      	}
      })
    }
	}

	const clearFile = () => {
    const fileManager = uni.getFileSystemManager()
    // TODO 3个App平台表现不一致 @颜伊林
    fileManager.rmdir({
      "dirPath":uni.env.CACHE_PATH,
      "recursive":true,
      success: (res : FileManagerSuccessResult) => {
        console.log("rmdir success", res)
        fileList.value = [] as fileListType[]
        size.value = 0
        count.value = 0
        uni.showToast({
          title:"清空缓存目录成功",
          icon:"success"
        })
      },
      fail: (res : IFileSystemManagerFail) => {
        console.error('清空缓存目录失败', res)
        uni.showModal({
        	title: '清空缓存目录失败',
        	content: res.errMsg,
        	showCancel: false
        })
      },
      complete: (res : any) => {
        console.log("rmdir complete", res)
      }
    })
  }

  const openFile = (fileItem: fileListType) => {
		let path = cacheOrData.value + fileItem.path
		let suffix = path.split('.').pop()
		switch(suffix) {
			case 'jpg':
			case 'png':
			case 'gif':
			case 'jpeg':
			case 'webp':
			case 'bmp':
			case 'ico':
			case 'heic':
			case 'heif':
			case 'tif':
				console.log("path:", path)
				uni.previewImage({
					urls: [path]
				})
				break

      default:
        uni.openDocument({
        	filePath: path,
        	success: (res) => {
        		console.log("openDocument success", res)
        	},
        	fail: (res) => {
        		console.error("openDocument fail", res)
            uni.showModal({
            	title: '打开文件失败',
            	content: res.errMsg,
            	showCancel: false
            })
        	}
        })

		}
  }
	const snapshot = () => {
			uni.getElementById("rootview")!.takeSnapshot({})
	}

// 根据路径中/的数量计算缩进样式
	const getIndentStyle = (path: string) => {
		const matches = path.match(/\//g)
		// console.log("matches", matches)
		let level = 0
		if (matches!=null) {
			level = matches.length
		}
		return {
			paddingLeft: `${level * 20}px`

		}
	}

</script>